sexy dance?? HELP

so i was about to sit on my boyfriends face today and he said he wanted to me to show him myself, like dance for him, turn him on and shit but like i’m fairly lanky and have no like idea what to do? like he could tell i clearly was embarrassed because he kept saying “dont be embarrassed, just show me yourself” but i had absolutely no clue what to do? i ended up sitting basically on his chest facing his knob and kind of putting my pussy near his face and then moving away again, but like i know he’ll ask again but i still have absolutely no clue what to do?? helppp